Vehicle-brake.



No. 783,239. I PATENTED FEB. 21, 1905.

D. BERRY.

VEHICLE BRAKE.

APPLICATION FILED AUG. 27, 1904.

v. J 17 15-57177 8 i I I Ill/i1".

ATTORNEYS STATES Patented February 21, 1905.

DAVID BERRY, OF FISHROCK, CALIFORNIA.

VEHICLE-BRAKE.

SPECIFICATION forming part of Letters Patent No. 783,239, dated February21, 1905.

Application filed August 2'7, 1904. Serial No. 222,376.

To (all whom, it may concern:

Be it known that 1, DAVID BERRY, acitizen of Switzerland, and a residentof Fishrock, in the county of Mendocino and State of California, haveinvented a new and Improved Vehicle-Brake, of which the following is afull, clear, and exact description.

The object of this invention is to provide a brake for vehicles whichwill be very powerful, be easily operated by foot-power, and capable ofrelease by changing the pressure of the feet of the operator.

The invention consists in the novel construction and combination ofparts, as is hereinafter described, and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure l is a partly-sectional side view of the'improved brake mountedupon a vehicle, the brake being in released adjustment. Fig. 2 is a planview of the vehicle and of the brake mounted thereon in releasedadjustment, a por-. tion of the vehicle-body being removed to showportions of the brake that are located below the body. Fig. 3 is afragmentary partly-sectional side View of the vehicle and apartly-sectional side view of the brake mounted thereupon and adjustedto brake a wheel of the vehicle, and Fig. 4 is a detail view of theimproved brake seen opposite the arrow in Fig. 2.

In the drawings, which show the construction and application of theinvention, 5 indicates the box-body of a vehicle mounted upon a frontaxle 6 and rear axle 7 by springs 8, seated upon the axles, the latterreceiving upon their end spindles wheels 9 9, that'rotate thereon asusual. 7

A brake-shaft 10 is held to rock transversely on the lower side of thewagon-body 5 by two bracketboxes 11, secured thereto at points whichlocate the shaft near the rims of the rear wheels 9. Fixed upon the endsof the shaft 10 are the upper ends of two similar arms 10, lower ends ofwhich are loosely secured upon respective brake-blocks 12, the concavefaces of which are disposed opposite but not in contact with theperipheries of the wheels 9 when the brake mechanism is in releasedadjustment.

Near the longitudinal center of the brakeshaft 10 a rock-arm 13 isaffixed by one end and thence extends downward, the lower portion beingpreferably curved edgewise and forward, as shown in Figs. 1 and 3.

Upon the rear axle 7 a clip band 1 is clamped near the longitudinalcenter of said axle, and upon the clamping-plate of said clipband thatat one end extends forward the rear end of a connecting-rod 15 ispivoted, as is shown at a in the drawings. A turnbuckle b is introducedin the connecting-rod 15, which engages threaded bisected membersthereof and by rotatable adjustment controls the length of said rod. Theforward end portion 15 of the connecting-rod 15 is forked, and throughsaid fork the lower portion of the rock-arm 13 is passed downward.Between the ends of the forked members on the connecting-rod 15 anupwardly and downwardly projecting rock arm 16 is pivoted between itsends, as shown at c, the lower ends of the rock-arms 13 and 16 that laptogether laterally being pivoted where they lap, as is indicated inFigs. 1 and 2.

Upon the upper end of the double-ended rock-arm 16 ends of a shortlink-rod 17 and a long link-ban18 are lapped and pivoted. the

rear end of the rod 18 being preferably forked to facilitate such aconnection, as is shown in Fig. 2-. The short link-rod 17 extendsrearward and at the rear end is connected to the front end of acontractile spring 19, which at its remaining end is coupled with abracketplate 20, that is attached upon the lower side of the bottom ofthebody 5.

A horizontal treadle-lever 21 is held to rock above and near the upperside of the floor 5 of the vehicle body 5 by a vertical stub-shaft (Z,that passes through and is secured to a circular-edged hub a, formed onan end of said treadle-lever and that seats upon a wear-plate 9, thatseats upon and is secured to the floor 5. The wear-plate and shaft (Zare at one side of the forwardly-trending elongated linkbar 18, and fromthe lower end of the shaft (Z extends an arm it, that is pivoted uponthe forward end of said link-bar.

A plurality of ratchet-teeth 2' are formed in the circular edge of thehub e at the rear side of the latter, and a curved dog or pawl m is thedriver of a team drawing the vehicle.

It will be seen that if the pawl m is released from engagement betweenthe ratchet-teeth i the contractile force of the coiled spring 19 willpull upon the short link-rod l7 and long link-bar 18, which will pullupon the outer end of the arm It and rock the free end of thetreadle-lever 21 rearward. This pull on the short link-rod 17 at thesame time rocks the upper end of the double-ended rock-arm'16 rearwardand its lower end forward, which will correspondingly rock forward thelower end of the rock-arm 13 and turn the brake shaft 10 in such adirection as will rock the brake-blocks 12 away from the peripheries ofthe rear wheels 9, this being the normal condition of the brakemechanism.

When the brake is to be applied, the operator presses forward upon thefree end of the treadle-lever 21, thus rocking the arm it forward andpulling upon the long link-bar 18, so as to rock the upper end of thedoubleended rock-arm 16 forward and push its lower end rearward. Thiswill rock the lower end of the rock-arm 13 rearward and turn thebrake-shaft 10 in direction of the curved arrow in Fig. 3, thusenforcing contact of the brake-blocks 12 upon the rims of the wheels 9.When the treadle-lever 21 is pushed by foot-pressure forwardly, the pawlm will ride with its toe over the ratchet-teeth z', and said toe willdrop between two of said teeth when the brake-blocks 12 have enforcedcontact with the peripheries of the rear wheels 9*, thus holding thebrake-blocks in contact with a said wheels until the brake is releasedby footpressure on the lug m, as before explained.

By provision of the turnbuckle connection Z; between members of theconnecting-rod 15 the pressure of the brake-blocks 12 may be increasedat any time this is desired and also affords means for compensating forwear on faces of the brake-blocks.

The improved brake may be applied upon heavy or light wheeled vehiclesof all kinds which will permit the placing of a treadle-lever 21 uponthe vehicle-body in front of the seat for the driver or other person whois to operate the brake and allow a connection of the treadle-lever withthe brake-shaft as is set forth.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A vehicle-brake embodying a rockable brake-shaft onthe vehicle-body, brake-blocks carried on the ends of said shaft forcontact with the rear vehicle-wheels, a rock-arm pendent from thebrake-shaft, a rock-arm pivoted on a support between its ends andpivoted at its lower end on the pendent rock-arm, a horizontaltreadle-lever held to rock on the vehicle-body, and spring-drawn meansconnecting said lever with the upper end of the rock-arm that is pivotedbetween its ends, whereby the brake is set when the treadle-lever ispressed forward and released when pressure is removed from said lever.

2. Avehicle-brake embodying a transverse brake-shaft, brake-blockscarried by the shaft for contact with the rear wheels of the vehicle, adepending rock-arm on the brake-shaft, a support extended forward fromthe rear axle 'of the vehicle, a double-ended rock-arm pivoted betweenits ends on said support, the lower end of said rock-arm being pivotedupon the lower end of the arm on the brake-shaft, means normally pullingthe upper end of the double-ended rock-arm rearward for the release ofthe brake-blocks, and means adapted by foot-pressure for rocking theupper end of the double-ended rock-arm forward and thu setting thebrake.

3. A vehicle-brake embodying a brake-shaft held to rock on avehicle-body forward of the rear wheels, a depending rock-arm on thebrake-shaft, a connecting-bar having an adjustable turnbuckle thereonand held at its rear end on the rear axle of the vehicle, a double-endedrock-arm pivoted between its ends on the front end of theconnecting-bar, a contractile spring adapted to pull the upper end ofsaid double-ended rock-arm rearward, a pivot connection between thelower end of the double-ended rock-arm and the lower end of the rock-armon the brake-shaft, a horizontal treadle-lever held to rock on thevehicle-body near its front end, a link-bar connecting the treadle-leverwith the upper end of the double-ended rock-arm, and means for holdingthe treadle lever rocked forward against stress of the spring.

4. In a vehicle-brake of the character described, the means for settingthe brake by foot-pressure, comprising the treadle-lever pivoted to rockhorizontally on the bottom of the vehicle-body, a circularly-edged hubon said lever the periphery of which is formed with ratchet-teeth, astub-shaft centrally secured in the hub and extending down through thebottom of the body, an arm on the lower end of the stub shaft, a linkbar extended In testimony whereof I have signed my name from the end ofsaid arm rearward to the to this specification in the presence of twosnb- I O brake device, and a spring-pressed pawl adaptscribingwitnesses. ed for engaging the ratchet-teeth and holding the brake setwhen the treadle-lever is rocked DAVID BERRY forward, the pawl having alateral lug that Witnesses: foot-pressure will rock and release the pawlLENORA E. BERRY,

from the ratchet-teetl1.. J OE H. BORDEN.

